A commuter is trapped inside the wreck of a derailed train. He manages to escape without injury, but it quickly becomes clear that broken bones are the least of this passenger’s concerns.
A government minister learns of the disaster, and in the process of trying to contact her daughter on the train discovers that there are elements at play here that are way above her control.
Two ambulance officers rush a victim to the hospital. They try unsuccessfully to save their patient before making the deadly discovery that the sickness is contagious and that they themselves have been infected. Can they warn people in time?
Jack’s wife, Shelley, returns home from having narrowly escaped the train disaster, but as she knocks on the door it is clear she is not well. Jack, fed with information from the TV news, has a life-or-death decision to make.
A man of middle-eastern descent is under suspicion of being implicated in what is now being treated as a terrorist attack on Sydney. Is he involved, or is there a severe case of racism at play here?
Scott goes about his duties of trying to pull as many survivors from the wreck as possible. His search uncovers something far more sinister than injured passengers.